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|
drop table if exists t1,t2;
create table t1 (a int not null);
insert into t1 values (1);
insert into t1 values (a+2);
insert into t1 values (a+3);
insert into t1 values (4),(a+5);
select * from t1;
a
1
2
3
4
5
drop table t1;
create table t1 (id int not null auto_increment primary key, username varchar(32) not null, unique (username));
insert into t1 values (0,"mysql");
insert into t1 values (0,"mysql ab");
insert into t1 values (0,"mysql a");
insert into t1 values (0,"r1manic");
insert into t1 values (0,"r1man");
drop table t1;
create table t1 (a int not null auto_increment, primary key (a), t timestamp, c char(10) default "hello", i int);
insert into t1 values (default,default,default,default), (default,default,default,default), (4,0,"a",5),(default,default,default,default);
select a,t>0,c,i from t1;
a t>0 c i
1 1 hello NULL
2 1 hello NULL
4 0 a 5
5 1 hello NULL
truncate table t1;
insert into t1 set a=default,t=default,c=default;
insert into t1 set a=default,t=default,c=default,i=default;
insert into t1 set a=4,t=0,c="a",i=5;
insert into t1 set a=5,t=0,c="a",i=null;
insert into t1 set a=default,t=default,c=default,i=default;
select a,t>0,c,i from t1;
a t>0 c i
1 1 hello NULL
2 1 hello NULL
4 0 a 5
5 0 a NULL
6 1 hello NULL
drop table t1;
create table t1 (sid char(20), id int(2) NOT NULL auto_increment, key(sid, id));
insert into t1 values ('skr',NULL),('skr',NULL),('test',NULL);
select * from t1;
sid id
skr 1
skr 2
test 1
insert into t1 values ('rts',NULL),('rts',NULL),('test',NULL);
select * from t1;
sid id
rts 1
rts 2
skr 1
skr 2
test 1
test 2
drop table t1;
create table t1 (id int NOT NULL DEFAULT 8);
insert into t1 values(NULL);
ERROR 23000: Column 'id' cannot be null
insert into t1 values (1), (NULL), (2);
Warnings:
Warning 1263 Data truncated, NULL supplied to NOT NULL column 'id' at row 2
select * from t1;
id
1
0
2
drop table t1;
create table t1 (email varchar(50));
insert into t1 values ('sasha@mysql.com'),('monty@mysql.com'),('foo@hotmail.com'),('foo@aol.com'),('bar@aol.com');
create table t2(id int not null auto_increment primary key, t2 varchar(50), unique(t2));
insert delayed into t2 (t2) select distinct substring(email, locate('@', email)+1) from t1;
select * from t2;
id t2
1 mysql.com
2 hotmail.com
3 aol.com
drop table t1,t2;
drop database if exists mysqltest;
create database mysqltest;
use mysqltest;
create table t1 (c int);
insert into mysqltest.t1 set mysqltest.t1.c = '1';
drop database mysqltest;
use test;
create table t1(
`number ` int auto_increment primary key,
`original_value ` varchar(50),
`f_double ` double,
`f_float ` float,
`f_double_7_2 ` double(7,2),
`f_float_4_3 ` float (4,3),
`f_double_u ` double unsigned,
`f_float_u ` float unsigned,
`f_double_15_1_u ` double(15,1) unsigned,
`f_float_3_1_u ` float (3,1) unsigned
);
set @value= "aa";
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1265 Data truncated for column 'f_double ' at row 1
Warning 1265 Data truncated for column 'f_float ' at row 1
Warning 1265 Data truncated for column 'f_double_7_2 ' at row 1
Warning 1265 Data truncated for column 'f_float_4_3 ' at row 1
Warning 1265 Data truncated for column 'f_double_u ' at row 1
Warning 1265 Data truncated for column 'f_float_u ' at row 1
Warning 1265 Data truncated for column 'f_double_15_1_u ' at row 1
Warning 1265 Data truncated for column 'f_float_3_1_u ' at row 1
select * from t1 where `number `=last_insert_id();
number 1
original_value aa
f_double 0
f_float 0
f_double_7_2 0.00
f_float_4_3 0.000
f_double_u 0
f_float_u 0
f_double_15_1_u 0.0
f_float_3_1_u 0.0
set @value= "1aa";
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1265 Data truncated for column 'f_double ' at row 1
Warning 1265 Data truncated for column 'f_float ' at row 1
Warning 1265 Data truncated for column 'f_double_7_2 ' at row 1
Warning 1265 Data truncated for column 'f_float_4_3 ' at row 1
Warning 1265 Data truncated for column 'f_double_u ' at row 1
Warning 1265 Data truncated for column 'f_float_u ' at row 1
Warning 1265 Data truncated for column 'f_double_15_1_u ' at row 1
Warning 1265 Data truncated for column 'f_float_3_1_u ' at row 1
select * from t1 where `number `=last_insert_id();
number 2
original_value 1aa
f_double 1
f_float 1
f_double_7_2 1.00
f_float_4_3 1.000
f_double_u 1
f_float_u 1
f_double_15_1_u 1.0
f_float_3_1_u 1.0
set @value= "aa1";
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1265 Data truncated for column 'f_double ' at row 1
Warning 1265 Data truncated for column 'f_float ' at row 1
Warning 1265 Data truncated for column 'f_double_7_2 ' at row 1
Warning 1265 Data truncated for column 'f_float_4_3 ' at row 1
Warning 1265 Data truncated for column 'f_double_u ' at row 1
Warning 1265 Data truncated for column 'f_float_u ' at row 1
Warning 1265 Data truncated for column 'f_double_15_1_u ' at row 1
Warning 1265 Data truncated for column 'f_float_3_1_u ' at row 1
select * from t1 where `number `=last_insert_id();
number 3
original_value aa1
f_double 0
f_float 0
f_double_7_2 0.00
f_float_4_3 0.000
f_double_u 0
f_float_u 0
f_double_15_1_u 0.0
f_float_3_1_u 0.0
set @value= "1e+1111111111a";
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1265 Data truncated for column 'f_double ' at row 1
Warning 1265 Data truncated for column 'f_float ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float ' at row 1
Warning 1265 Data truncated for column 'f_double_7_2 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_7_2 ' at row 1
Warning 1265 Data truncated for column 'f_float_4_3 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_4_3 ' at row 1
Warning 1265 Data truncated for column 'f_double_u ' at row 1
Warning 1265 Data truncated for column 'f_float_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_u ' at row 1
Warning 1265 Data truncated for column 'f_double_15_1_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_15_1_u ' at row 1
Warning 1265 Data truncated for column 'f_float_3_1_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_3_1_u ' at row 1
select * from t1 where `number `=last_insert_id();
number 4
original_value 1e+1111111111a
f_double 1.79769313486232e+308
f_float 3.40282e+38
f_double_7_2 99999.99
f_float_4_3 9.999
f_double_u 1.79769313486232e+308
f_float_u 3.40282e+38
f_double_15_1_u 99999999999999.9
f_float_3_1_u 99.9
set @value= "-1e+1111111111a";
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1265 Data truncated for column 'f_double ' at row 1
Warning 1265 Data truncated for column 'f_float ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float ' at row 1
Warning 1265 Data truncated for column 'f_double_7_2 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_7_2 ' at row 1
Warning 1265 Data truncated for column 'f_float_4_3 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_4_3 ' at row 1
Warning 1265 Data truncated for column 'f_double_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_u ' at row 1
Warning 1265 Data truncated for column 'f_float_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_u ' at row 1
Warning 1265 Data truncated for column 'f_double_15_1_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_15_1_u ' at row 1
Warning 1265 Data truncated for column 'f_float_3_1_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_3_1_u ' at row 1
select * from t1 where `number `=last_insert_id();
number 5
original_value -1e+1111111111a
f_double -1.79769313486232e+308
f_float -3.40282e+38
f_double_7_2 -99999.99
f_float_4_3 -9.999
f_double_u 0
f_float_u 0
f_double_15_1_u 0.0
f_float_3_1_u 0.0
set @value= 1e+1111111111;
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1264 Data truncated, out of range for column 'f_float ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_7_2 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_4_3 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_15_1_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_3_1_u ' at row 1
select * from t1 where `number `=last_insert_id();
number 6
original_value 1.7976931348623e+308
f_double 1.79769313486232e+308
f_float 3.40282e+38
f_double_7_2 99999.99
f_float_4_3 9.999
f_double_u 1.79769313486232e+308
f_float_u 3.40282e+38
f_double_15_1_u 99999999999999.9
f_float_3_1_u 99.9
set @value= -1e+1111111111;
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1264 Data truncated, out of range for column 'f_float ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_7_2 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_4_3 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_15_1_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_3_1_u ' at row 1
select * from t1 where `number `=last_insert_id();
number 7
original_value -1.7976931348623e+308
f_double -1.79769313486232e+308
f_float -3.40282e+38
f_double_7_2 -99999.99
f_float_4_3 -9.999
f_double_u 0
f_float_u 0
f_double_15_1_u 0.0
f_float_3_1_u 0.0
set @value= 1e+111;
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1264 Data truncated, out of range for column 'f_float ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_7_2 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_4_3 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_15_1_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_3_1_u ' at row 1
select * from t1 where `number `=last_insert_id();
number 8
original_value 1e+111
f_double 1e+111
f_float 3.40282e+38
f_double_7_2 99999.99
f_float_4_3 9.999
f_double_u 1e+111
f_float_u 3.40282e+38
f_double_15_1_u 99999999999999.9
f_float_3_1_u 99.9
set @value= -1e+111;
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1264 Data truncated, out of range for column 'f_float ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_7_2 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_4_3 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_15_1_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_3_1_u ' at row 1
select * from t1 where `number `=last_insert_id();
number 9
original_value -1e+111
f_double -1e+111
f_float -3.40282e+38
f_double_7_2 -99999.99
f_float_4_3 -9.999
f_double_u 0
f_float_u 0
f_double_15_1_u 0.0
f_float_3_1_u 0.0
set @value= 1;
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
select * from t1 where `number `=last_insert_id();
number 10
original_value 1
f_double 1
f_float 1
f_double_7_2 1.00
f_float_4_3 1.000
f_double_u 1
f_float_u 1
f_double_15_1_u 1.0
f_float_3_1_u 1.0
set @value= -1;
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1264 Data truncated, out of range for column 'f_double_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_15_1_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_3_1_u ' at row 1
select * from t1 where `number `=last_insert_id();
number 11
original_value -1
f_double -1
f_float -1
f_double_7_2 -1.00
f_float_4_3 -1.000
f_double_u 0
f_float_u 0
f_double_15_1_u 0.0
f_float_3_1_u 0.0
drop table t1;
|
